Well, it might be similar to what you sod-busters do to have fun down south, you know, when out in the cow pastures. You gather a bunch of cow patties, sort through them for a uniform size, keeping them, frying the rest up for supper. Next you dig out your favorite garden hoe, now take it to the blacksmith's vice, mounted on your work bench, heating the hoe stem to red hot and bend the hoe proper, to 90 degrees. Now, dismantle your pasture fencing carrying the pieces to your farm pond, constructing a 3' X 6' target at each end of the pond. Now stand in the middle of the pond, waiting for freezing temperatures to ice over the pond. When the pond is frozen over, shout to your wife, or significant other to toss a few of the standard size cow paddies at you. Ducking to miss them, should release you from the frozen pond, and with wet boots, you'll now be able to slip and slide on top of the frozen water. Take your altered hoe (the garden hoe and not your otherwise, hysterically laughing wife or significant other, and try to smack the cow patties into the 3' X 6' target.
After you master the above, I'll explain the neutral zone trap and other calls a ref (or your wife or significant other), might make.